Question

Which of the following is a displacement?
a.
5 m/s
c.
-0.7 m/s2
b.
10 ft
d.
3 blocks east

Answer 1

again, look at the units.
The first option has the unit of velocity (m/s)
The second one of acceleration.
So, those two are out.

The 3rd and fourth have similar units (that of distance).
But the fourth option, has the direction (east) attached to the unit.
So, that's our answer.